(1)If vehicle is equipped with airbags, disarm the airbag system. To do this, turn the ignition switch to OFF position. Detach the cable from the negative battery terminal, then detach the positive cable. Wait two minutes for the electronic module backup power supply to be depleted. To enable the system, turn the ignition switch to OFF position. Connect the positive cable first, then connect the negative.
(2)Disconnect the blower motor connector.
(3) Remove the blower motor mounting screws and remove the motor.
(4)Remove the blower motor wheel hub pushnut and the clamp from the shaft. Pull the blower motor wheel from the shaft.
(5) Installation is the reverse of these steps.
Its
faulty blower motor resistor. The low and medium speed on blower motor is
controlled by resistor and its actual speed is high. So because resistor is not
working, blower motors actual speed which is high is working.
It
can be faulty blower motor or faulty blower motor resistor. Get the blower
motor inspected. If it's faulty it has to be replaced.
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For
blower motor testing and replacing, check the link below: ----
http://repairhelpcenter.blogspot.in/2012/02/blower-motor-replacing-for-all-vehicles.html
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These will help.
Thanks.
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